OpenE2K/qemu-e2k
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qemu-e2k/block
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Vladimir Sementsov-Ogievskiy 0df62f45c1 block/backup-top: fix failure path 
We can't access top after call bdrv_backup_top_drop, as it is already
freed at this time.

Also, no needs to unref target child by hand, it will be unrefed on
bdrv_close() automatically.

So, just do bdrv_backup_top_drop if append succeed and one bdrv_unref
otherwise.

Note, that in !appended case bdrv_unref(top) moved into drained section
on source. It doesn't really matter, but just for code simplicity.

Fixes: 7df7868b96
Cc: qemu-stable@nongnu.org # v4.2.0
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20200121142802.21467-2-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-02-06 13:47:45 +01:00
..
accounting.c block: add empty account cookie type 2019-10-10 10:56:18 +02:00
aio_task.c block: introduce aio task pool 2019-10-10 10:56:17 +02:00
backup-top.c block/backup-top: fix failure path 2020-02-06 13:47:45 +01:00
backup-top.h block: introduce backup-top filter driver 2019-10-10 10:56:18 +02:00
backup.c block/backup-top: Don't acquire context while dropping top 2020-01-27 17:19:53 +01:00
blkdebug.c blkdebug: Allow taking/unsharing permissions 2020-01-06 13:43:06 +01:00
blklogwrites.c
blkreplay.c block: implement bdrv_snapshot_goto for blkreplay 2019-10-14 17:12:48 +02:00
blkverify.c
block-backend.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
block-copy.c block/block-copy: fix s->copy_size for compressed cluster 2019-11-04 09:21:45 +01:00
bochs.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
cloop.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
commit.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
copy-on-read.c block/cor: Drop cor_co_truncate() 2019-10-28 11:59:51 +01:00
create.c block/create: Do not abort if a block driver is not available 2019-09-13 12:18:37 +02:00
crypto.c block: Let format drivers pass @exact 2019-10-28 12:05:30 +01:00
crypto.h
curl.c curl: Check curl_multi_add_handle()'s return code 2019-09-16 15:31:12 +02:00
dirty-bitmap.c bitmap: Enforce maximum bitmap name length 2019-11-18 16:01:34 -06:00
dmg-bz2.c
dmg-lzfse.c
dmg.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
dmg.h
file-posix.c block/file-posix.c: extend to use io_uring 2020-01-30 20:59:42 +00:00
file-win32.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
filter-compress.c block: introduce compress filter driver 2020-01-06 13:43:07 +01:00
gluster.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
io_uring.c block/io_uring: adds userspace completion polling 2020-01-30 20:59:42 +00:00
io.c block/io: take bs->reqs_lock in bdrv_mark_request_serialising 2020-01-30 20:59:41 +00:00
iscsi-opts.c
iscsi.c iscsi: Don't access non-existent scsi_lba_status_descriptor 2020-01-27 17:19:53 +01:00
linux-aio.c linux-aio: increasing MAX_EVENTS to a larger hardcoded value 2020-01-13 16:41:45 +00:00
Makefile.objs block/io_uring: implements interfaces for io_uring 2020-01-30 20:59:41 +00:00
mirror.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
nbd.c nbd: assert that Error** is not NULL in nbd_iter_channel_error 2019-12-18 08:43:19 +01:00
nfs.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
null.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
nvme.c block/nvme: add support for discard 2019-10-28 11:34:35 +01:00
parallels.c Block patches for softfreeze: 2019-10-28 14:40:01 +00:00
parallels.h
qapi.c qapi: query-blockstat: add driver specific file-posix stats 2019-10-10 10:56:18 +02:00
qcow2-bitmap.c qcow2-bitmaps: fix qcow2_can_store_new_dirty_bitmap 2020-01-06 13:43:06 +01:00
qcow2-cache.c core: replace getpagesize() with qemu_real_host_page_size 2019-10-26 15:38:06 +02:00
qcow2-cluster.c qcow2: Use bs->bl.request_alignment when updating an L1 entry 2020-02-06 13:47:45 +01:00
qcow2-refcount.c qcow2: Don't round the L1 table allocation up to the sector size 2020-02-06 13:47:45 +01:00
qcow2-snapshot.c qcow2: Don't round the L1 table allocation up to the sector size 2020-02-06 13:47:45 +01:00
qcow2-threads.c block/qcow2: refactor encryption code 2019-09-16 15:36:22 +02:00
qcow2.c qcow2: Use BDRV_SECTOR_SIZE instead of the hardcoded value 2020-02-06 13:47:45 +01:00
qcow2.h qcow2: Fix QCOW2_COMPRESSED_SECTOR_MASK 2019-11-07 14:37:46 +01:00
qcow.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
qed-check.c
qed-cluster.c
qed-l2-cache.c
qed-table.c
qed.c block: Pass truncate exact=true where reasonable 2019-10-28 12:08:45 +01:00
qed.h
quorum.c
raw-format.c block: Let format drivers pass @exact 2019-10-28 12:05:30 +01:00
rbd.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
replication.c block/backup: use backup-top instead of write notifiers 2019-10-10 10:56:18 +02:00
sheepdog.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
snapshot.c block/snapshot: rename Error ** parameter to more common errp 2019-12-18 08:43:19 +01:00
ssh.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
stream.c job: drop job_drain 2019-09-10 08:58:43 +02:00
throttle-groups.c throttle-groups: fix memory leak in throttle_group_set_limit: 2020-01-06 13:43:06 +01:00
throttle.c
trace-events block: add trace events for io_uring 2020-01-30 20:59:42 +00:00
vdi.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
vhdx-endian.c
vhdx-log.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
vhdx.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
vhdx.h
vmdk.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
vpc.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
vvfat.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
vxhs.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
win32-aio.c
write-threshold.c